fix: allow to use null from clients side with primitives (vaadin#11948)

fixes vaadin#4062

Revert atmosphere changes (vaadin#11953)

* Revert "fix: Upgrade to Atmosphere 2.7.2 and Atmosphere JS 3.1.2 (vaadin#11935)"

This reverts commit e6459b3.

* Revert "chore: Download Atmosphere JS instead of having it in the project (vaadin#11934)"

This reverts commit bb04952.

test: Ignore component theme live reload test (vaadin#11929) (vaadin#…

…11931)

Related-to vaadin#11928

Co-authored-by: Mikhail Shabarov <[email protected]>

fix: pinned dependency only adds when modified (vaadin#11893)

Do not mark pin if no version is actually
added or changed.
With this npm install will not always be
executed on reload and the copied
modules will not disappear.

Fixes vaadin#11888

feat: allow listener removal via DataChangeEvent (vaadin#11849)

Fixes vaadin#6947

fix: bump commons-io from 2.8.0 to 2.11.0 (vaadin#11739) (vaadin#11798)

Bumps commons-io to a newer version where this bug has been fixed https://issues.apache.org/jira/browse/IO-692.

Fixes vaadin#11794

Revert "refactor(flow-server): bump construct-style-sheets-polyfill v…

…ersion (vaadin#11634)" (vaadin#11720)

This reverts commit a345446.

fix: keep track of css injected to document (vaadin#11635) (vaadin#11673

)

Stops css/fonts from being loaded multiple times to the document with embedded applications.

Fixes vaadin#11608

fix: bump webpack version in client package.json (vaadin#11671) (vaad…

…in#11690)

Fixes vaadin#11668

Co-authored-by: Serhii Kulykov <[email protected]>

fix: return ServletConfig during serbvlet destroy invocation (vaadin#…

…11625) (vaadin#11711)

fixes vaadin#11624